codeforces 651B beautiful_Painting

B. Beautiful Paintings

time limit per test1 second

memory limit per test256 megabytes

inputstandard input

outputstandard output

There are n pictures delivered for the new exhibition. The i-th painting has beauty ai. We know that a visitor becomes happy every time he passes from a painting to a more beautiful one.

We are allowed to arranged pictures in any order. What is the maximum possible number of times the visitor may become happy while passing all pictures from first to last? In other words, we are allowed to rearrange elements of a in any order. What is the maximum possible number of indices i (1 ≤ i ≤ n - 1), such that ai + 1 > ai.

Input

The first line of the input contains integer n (1 ≤ n ≤ 1000) — the number of painting.

The second line contains the sequence a1, a2, …, an (1 ≤ ai ≤ 1000), where ai means the beauty of the i-th painting.

Output

Print one integer — the maximum possible number of neighbouring pairs, such that ai + 1 > ai, after the optimal rearrangement.

#include<iostream>
#include<cstdio>
#include<cstring>
#include<cmath>
#define N 100005
#include <algorithm>
using namespace std;

int main()
{
int n;
while(cin>>n)
{
int a
,s,max;
max=-0;
for(int i=0;i<n;i++)
{
cin>>s;
a[s]++;
if(max<a[s])
max=a[s];  //这个非常巧妙，max最多重复次数的数字
}

cout<<n-max<<endl;   //因为max重复，不论n为多少，都会有max个重复的
}
return 0;
}

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